/**
 * licensed to the apache software foundation (asf) under one
 * or more contributor license agreements.  see the notice file
 * distributed with this work for additional information
 * regarding copyright ownership.  the asf licenses this file
 * to you under the apache license, version 2.0 (the
 * "license"); you may not use this file except in compliance
 * with the license.  you may obtain a copy of the license at
 *
 * http://www.apache.org/licenses/license-2.0
 *
 * unless required by applicable law or agreed to in writing, software
 * distributed under the license is distributed on an "as is" basis,
 * without warranties or conditions of any kind, either express or implied.
 * see the license for the specific language governing permissions and
 * limitations under the license.
 */

#include "hurricane/topology/TopologyLoader.h"
#include "hurricane/base/Library.h"
#include "logging/Logging.h"

namespace hurricane {
namespace topology {
const std::string& GET_TOPOLOGY_INTERFACE = "GetTopology";

TopologyLoader& TopologyLoader::GetInstance() {
    static TopologyLoader instance;

    return instance;
}

std::shared_ptr<Topology> TopologyLoader::GetTopology(const std::string& topologyName) {
    if ( _libraryHandles.find(topologyName) == _libraryHandles.end() ) {
        LibraryHandle libraryHandle = HurricaneLibraryLoad(topologyName);
        _libraryHandles[topologyName] = libraryHandle;
        TopologyGetter topologyGetter =
                HurricaneLibraryGetSymbol<TopologyGetter>(libraryHandle, GET_TOPOLOGY_INTERFACE);

        _topologies[topologyName].reset(topologyGetter());
    }

    return _topologies[topologyName];
}

}
}
